Drilling Industry Glossary
waiting on cement (WOC)
water
water activity
water phase salinity
water table
weight indicator
weight on bit (WOB)
well logging
well planning
wellbore
wellpath map
whip stock
wild cat
workover
worm or weavel
Weight Indicator
An instrument on a drilling rig that shows both the weight of the drill string that is hanging from the hook (hook load) and the weight that is placed on the bottom of the hole (weight on bit).
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